An object with a mass of $18 kg$ is hanging from an axle with a radius of $16 cm$ . If the wheel attached to the axle has a radius of $2 cm$ , how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-06-03T06:50:10

The force is $=1411.2N$

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The load L=(18g)N#

Radius of axle $r=0.16m$

Radius of wheel $R=0.02m$

Taking moments about the center of the axle

$F*R=L*r$

$F*0.02=18*g*0.16$

$F=(18*g*0.16)/0.02=1411.2N$

The force is $=1411.2N$

An object with a mass of 18 kg18 kg is hanging from an axle with a radius of 16 cm16 cm. If the wheel attached to the axle has a radius of 2 cm2 cm, how much force must be applied to the wheel to keep the object from falling?